Android tutorial
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This document provides an overview of tools and steps for developing Android applications using Eclipse. It discusses installing the Android SDK and ADT plugin for Eclipse, creating Android virtual devices, managing SDK packages, setting up a new Android project with required components, using layouts to define user interfaces, and an introduction to activities as single screens in an app.
Android tutorial
- 2. TOOLS 1. Phone 2. Eclipse ( http://www.eclipse.org/downloads/ ) Android Plugin (ADT) 1. Android SDK ( http://developer.android.com/sdk/index.html ) 2. JDK
- 3. ANDROID SDK Once installed open the SDK Manager Install the desired packages Create an Android Virtual Device (AVD)
- 4. SDK MANAGER
- 5. AVD
- 6. ADT PLUGIN (1) In Eclipse, go to Help -> Install New Software Click ‘Add’ in top right Enter: Name: ADT Plugin Location: https://dl-ssl.google.com/android/eclipse/ Click OK, then select ‘Developer Tools’, click Next Click Next and then Finish Afterwards, restart Eclipse Specify SDK location (next 3 slides) Must do this every time start a new project in a new location (at least in Windows)
- 10. CREATING A PROJECT (1)
- 11. CREATING A PROJECT (2) Need the items circled Then click Finish
- 12. PROJECT COMPONENTS src – your source code gen – auto-generated code Included libraries Resources Drawables (like .png images) Layouts Manifest file
- 13. LAYOUTS (1) Eclipse has a great UI creator Generates the XML for you Composed of View objects Can be specified for portrait and landscape mode Use same file name, so can make completely different UIs for the orientations without modifying any code
- 14. LAYOUTS (2)
- 15. ACTIVITIES (1) The basis of android applications A single Activity defines a single viewable screen the actions, not the layout Can have multiple per application Each is a separate entity They have a structured life cycle Different events in their life happen either via the user touching buttons or programmatically